{"product_id":"mitsubishi-fr-f740-3-7k-cht-3-7kw-high-performance-vfd","title":"Mitsubishi FR-F740-3.7K-CHT | Variateur haute performance 3,7 kW","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFR-F740-3.7K-CHT\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-performance Variable Frequency Drive (VFD) from Mitsubishi Electric, specifically optimized for fan and pump applications (F-series) but built with the robust architecture found in the universal D700 family. Rated for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3.7 kW (5 HP)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8A\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoutput, this model is designed for 400V class power systems.\u003c\/p\u003e\n\u003cp\u003eThe \"CHT\" designation indicates a specific regional optimization (often for the China market), featuring a wide permissible input voltage range (325V to 528V) to handle fluctuating power grids. This drive specializes in\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEnergy Saving\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOptimum Excitation Control\u003c\/strong\u003e, which can reduce motor energy consumption by up to 10% compared to standard V\/F control. With its integrated PID controller and Modbus RTU support, it is a premier choice for HVAC, water treatment, and industrial ventilation systems.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe FR-F740-3.7K-CHT combines energy efficiency with industrial safety:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOptimum Excitation Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eConstantly calculates the load to provide the minimum required magnetic flux, maximizing motor efficiency even at low speeds.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSafety Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCompliant with\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSIL2 \/ PLd\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEN ISO 13849-1 Category 3\u003c\/strong\u003e, featuring dual-channel safety inputs to disable the drive output instantly during an emergency.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSoft-PWM Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProprietary technology that reduces acoustic motor noise while maintaining high performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAdvanced PID Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAllows for sophisticated regulation of pressure and flow, including \"sleep\" modes to save power when demand is low.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAuto-Restart after Power Failure:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSpecifically designed for critical infrastructure; the drive can catch a coasting motor and bring it back to speed after a momentary voltage drop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSelf-Cooling System:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDespite its 3.7 kW capacity, the CHT variant is designed for efficient thermal management, reducing the mechanical failure points associated with external fans in certain environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFR-F740-3.7K-CHT\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMitsubishi Electric\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMotor Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.7 kW (5 HP)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRated Output Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8.0 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSupply Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3-Phase 380–480 V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Permissible Range\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e325 V to 528 V AC (50\/60 Hz)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Frequency\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.2 to 400 Hz\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOverload Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e150% for 60s, 200% for 0.5s\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eModbus RTU (RS-485)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtective Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4.0 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow is the \"F\" series different from the standard \"D\" series?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eF-series\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(FREQROL-F) is traditionally \"Fan and Pump\" optimized. It features specialized software for energy saving and PID control. While it shares many physical traits and parameters with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eD700\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eseries, the F-series is the preferred choice for centrifugal loads where power consumption is a primary concern.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat should I check if I receive an \"Output Phase Loss\" error?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis error indicates an open circuit between the drive and the motor. Check all connections at the U, V, and W terminals. If you are testing the drive without a motor connected, you may need to disable the Phase Loss detection parameter to prevent this alarm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is \"Regeneration Avoidance\"?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIn fan applications, wind can sometimes spin the fan faster than the motor speed (overhauling load), pushing energy back into the drive. Regeneration Avoidance automatically increases the output frequency to match the motor's actual speed, preventing an overvoltage trip.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEnergy Saving Commissioning\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTo maximize the benefits of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eOptimum Excitation Control\u003c\/strong\u003e, set\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ePr. 60 (Energy saving control selection)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto '9'. This is most effective for fans and pumps. For applications requiring constant torque (like conveyors), keep this at standard settings to ensure enough torque is available for startup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWiring for Safety and Control\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe drive's terminal block is designed for high-density wiring.\u003c\/p\u003e\n\u003col class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSafety Terminals (S1, S2):\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThese must be linked to the common terminal if not using a safety relay. If the circuit is broken, the drive will trigger a safety stop.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eModbus Connection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUse the RJ-45 port for RS-485 communication. Ensure you use a shielded cable and terminate the network with a 120-ohm resistor if the drive is at the end of the communication run.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGrounding:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAlways ground the \"E\" terminal. For 400V drives, a dedicated ground is essential to prevent high-frequency leakage currents from interfering with other sensitive electronics.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eThermal and Mounting Requirements\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMount the FR-F740-3.7K-CHT vertically. Although this model is listed with a self-cooling system, it still generates heat at 8A output. Ensure a minimum of 5 cm clearance above and below. In high-density \"Side-by-Side\" installations, consider the internal cabinet temperature; if it exceeds 40°C, the drives should be derated or the cabinet ventilation increased.\u003c\/p\u003e","brand":"Mitsubishi Electric","offers":[{"title":"Default Title","offer_id":53102305870187,"sku":"FR-F740-3.7K-CHT","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/FR-F740-3.7K-CHT-vfyegqvfz10.png?v=1776137504","url":"https:\/\/www.plcprotech.com\/fr\/products\/mitsubishi-fr-f740-3-7k-cht-3-7kw-high-performance-vfd","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}